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1. [Propagation] ionosonde (score: 1): Author: "Pnu7t" <nu7t@gbis.com>; Date: Fri, 7 Jan 2005 07:27:30 -0800; Fellow Aeronomists, Somewhere I read , "Unfortunately, vertical reflections typically disappear at frequencies higher than the ~30m range so that the more popular HF DX bands (10m-20m) cannot be adeq; /archives//html/Propagation/2005-01/msg00015.html (7,487 bytes)
2. Re: [Propagation] ionosonde (score: 1): Author: "David J. Ring, Jr." <n1ea@arrl.net>; Date: Fri, 7 Jan 2005 10:57:04 -0500; Since most of the world's longrange telecommunications is via satellite, there is little money invested in HF research as their is little perceived need for it. 73 David N1EA -- Original Message -- F; /archives//html/Propagation/2005-01/msg00017.html (8,672 bytes)

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